Gentle Vitamin C Serum — Reddit Reviews
by Dr. Althea
Updated August 25, 2026
Vitamin C serum brightens and soothes sensitive skin; mild efficacy reported.
What the community says
A lightweight vitamin C serum favored for sensitive and dry skin due to its gentle formulation. It mildly brightens and supports redness reduction without harsh irritation. Some users find it underwhelming for hyperpigmentation and acne scars, so patience or stronger actives may be needed.
What this means for you
What people love
- Lightweight and non-irritating for sensitive skin
- Gives a healthy glow when used before sunscreen
- Helps slightly with acne scars and redness
Watch out for
- Minimal results on hyperpigmentation and acne marks for some
- Reported fishy/sour smell indicating possible product degradation
- May cause breakouts or stickiness for acne-prone skin
Product details
Where to buy
Real Reddit threads — 26 mentions across 10 threads
Dr. Althea Gentle Vitamin C Serum on Reddit, in one place — 10 threads from r/koreanskincare, r/AsianBeauty and 2 more, summarized.
“Dr Althea Gentle Vitamin C Serum!!!”
Positive
“I saw a major difference after just one use of this serum!!”
Positive
“in the morning I could see my actual skin colour on my cheeks for the first time since I was a child”
Positive
“Dr. Althea Gentle Vitamin C Serum - Very gentle.”
Positive
“I feel like it helped a bit with the acne scars on my chest.”
Positive
“The dr althea vitamin c serum is on my list now.”
Positive
“dr Althea vitamin c is one of my fav since it’s light and doesn’t irritate my skin.”
Positive
“I use the Dr. Althea vitamin C serum and it’s pretty good.”
Positive
“I've used Dr Althea vitamin C serum and it's pretty good too”
Positive
“Dr. Althea gentle vitamin c serum (for pigmentation)”
Mentioned
“Need Suggestions or opinions on the products listed below.”
Mentioned
“***Serum***:”
Mentioned
“Dr. Althea Gentle Brightening Vitamin C Serum”
Positive
“UPDATED WEEKLY ROUTINE”
Positive
“Morning ☀️ (Mon-Sat)”
Positive
“Apply Dr. Althea Gentle Vitamin C Serum (something about the skin's natural pH?? so it needs to go on before the Hada Labo)”
Positive
“Vitamin c before the peptide booster.”
Positive
“Yes actives earlier in the routine is recommended for more direct penetration and pure vitamin c is ph dependent”
Positive
Dupes & Alternatives
Anua
Azelaic Acid Hyaluron Redness Soothing Serum
Better for Hyperpigmentation
4 shared traits
627 mentions
